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  #1  
Old 09-26-2018, 05:43 PM
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DeltaRomeo DeltaRomeo is offline
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Default Chandelle Entry Speed? (commercial manuevers)

I searched 'Chandelle' in the forums and found Rick using 120-125kts for his in an RV-7A. Practicing for the commercial check ride.

Can I get some data points on what others are using as an entry speed? I'll use Rick's speed in my RV-6 if nobody has any additional data.

Screen grab of the manuever:

v/r,dr
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Last edited by DeltaRomeo : 09-26-2018 at 08:47 PM.
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  #2  
Old 09-26-2018, 06:46 PM
BobTurner BobTurner is offline
 
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In the typical (172) training aircraft full power is used, as this is a "maximum performance maneuver". In an RV, choose a power setting so the airspeed slowly decreases throughout the maneuver, ending just above stall speed. If this results in an excessively high nose up attitude, use less power.
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  #3  
Old 09-26-2018, 06:56 PM
rocketman1988 rocketman1988 is offline
 
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Default Um...

The procedure for a Chandelle is detailed in the post above.

You begin the maneuver at Va, the maneuvering speed of the aircraft, Step#3

Full power is applied as speed begins to decrease, Step #6

Chandelles in a 172 are done exactly the same way, at Va maneuvering speed, not full power. Full power is added as the speed begins to decrease, Step #6

Using LESS power just because it is an RV, defeats the purpose and definition of the Chandelle...as you said, it is a MAXIMUM performance maneuver.
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Last edited by rocketman1988 : 09-26-2018 at 06:59 PM. Reason: add
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  #4  
Old 09-26-2018, 07:15 PM
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RWoodard RWoodard is offline
 
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Can a Cessna 172 even *reach* maneuvering speed?

OK... OK... maybe with the power on in a dive!
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  #5  
Old 09-26-2018, 07:34 PM
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Doug: I practice them at cruise speed. I thought the whole point of a Chandelle was to get you out of a suddenly dicey situation such as flying into a box canyon. It's meant to get you turned around 180 degrees with maximum altitude gained. I usually gain 1,000 ft if not more with the maneuver. I'm not practicing for a commercial ticket but figure it's a good maneuver to know.

Chris
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Last edited by chrispratt : 09-26-2018 at 07:38 PM.
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  #6  
Old 09-26-2018, 07:51 PM
rocketman1988 rocketman1988 is offline
 
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If you are practicing for the rating, you need to do it as described...at least if you want to get signed off and pass the ride.

As far as the comment about a 172 reaching maneuvering speed...I hope you were joking, otherwise, you need to review what maneuvering speed actually is.

The maneuvering speed for a mid 70's C-172 at a mid weight is around 85 knots, so getting to it is not a problem.
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RV-10
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  #7  
Old 10-01-2018, 06:45 AM
Whitman Whitman is offline
 
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DR

Iím working on this as well with a friends RV-7. Itís a steep climb. UND has a great video on YouTube about it.

https://youtu.be/Ml8YI7oj2Q8

Good luck with the check ride! My single engine CFI add check is in two weeks.
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  #8  
Old 10-01-2018, 07:17 AM
Dan B Dan B is online now
 
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I suggest you use the FAA Airplane Flying Handbook, H-8083-3, as a reference for the commercial maneuvers. Chapter 9 describes the performance maneuvers. A check airman should use this handbook as a reference.
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  #9  
Old 10-01-2018, 08:12 AM
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rocketbob rocketbob is offline
 
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All spelled out in the ACS. "Establish the appropriate entry configuration, power, and airspeed." Which means, whatever works. Depends on the airplane.

https://www.faa.gov/training_testing...rplane_acs.pdf

If you are doing the maneuvers in an RV then you want to start them somewhere in the neighborhood of 100-120kts to avoid an excessive climb, and not go full power.

As long as you are talking thru the entry and call out the speed and power settings as you enter the maneuver, the DPE shouldn't have any issues with whatever speed you choose.

In my 150 I start at normal cruise speed which is around 90kts, and full throttle during the entry.
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  #10  
Old 10-01-2018, 11:08 AM
rocketman1988 rocketman1988 is offline
 
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Default which...

Which is incorrect.

The maneuver is a MAXIMUM PERFORMANCE maneuver.

It is spelled out quite clearly that the entry speed is Va, maneuvering speed, no higher.

It is also spelled out quite clearly, that power is added as airspeed decreases to maximum power. Using less than maximum power throughout the climb defeats the purpose of the maneuver, which is a maximum performance climbing turn.

Talking through the maneuver is a double edged sword. IF you are describing the maneuver correctly and attempting to fly it that way, it can help...however...if you are describing it incorrectly, it makes the mistake stand out like a red flag...
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RV-10
Structure - 90% Done
Cabin Top - Aaarrghhh...
Doors - Done
On Gear
290 HP Barrett Hung
ShowPlanes Cowl with Skybolts Fitted - Beautiful
Wiring...

Dues Paid 2018,...Thanks DR+
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